How to Create New Caterpillar Injector Trim Files

It is necessary to program injector for Caterpillar after replacement.And you need use related injector trim files to program them,so here i will show you guide on how to create new Caterpillar injector trim files.


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Caterpillar Cat Trim Files Checksum Calculator



Open a trim file (also available read it by CAT ET diagnostic software) with txt

Copy the content from <Data>…</Data>


Paste it into CAT Trim File calculator


Here you can find the InjectorSeriaNo is same as the one in trim file

Now input new injector serial number then click “Change” button

Content between <Data>…</Data> will renew,now copy it and paste it into trim file


And change the InjectorSerialNo you input in the Cat trim file calculator


After then save this file and change the file format as .trm


Now use CAT ET diagnostic software Service function to load this trim file to program injector.


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